Virtual Key Codes Used by Windows

Windows defines special constants for each key the user can press. The virtual-key codes identify various virtual keys. These constants can then be used to refer to the keystroke when using Delphi and Windows API calls or in an OnKeyUp or OnKeyDown event handler. Virtual keys mainly consist of actual keyboard keys, but also include virtual elements such as the three mouse buttons. Delphi defines all constants for Windows virtual key codes in the Windows unit. Keyboard and VK Codes Here are some of the Delphi articles that deal with the keyboard and VK codes: Keyboard SymphonyDelphi For Beginners:Â  Get familiar with the OnKeyDown, OnKeyUp, and onKeyPress event procedures to respond to various key actions or handle and process ASCII characters along with other special purpose keys. How to Translate a Virtual Key Code into a CharacterWindows defines special constants for each key the user can press. The virtual-key codes identify various virtual keys. In Delphi, the OnKeyDown and OnKeyUp events provide the lowest level of keyboard response. To use OnKeyDown or OnKeyUp to test for keys the user presses, you must use Virtual key codes to get the key pressed. Heres how to translate the virtual key code to the corresponding Windows character. Touch Me - Im UntouchableIntercepting keyboard input for controls that cannot receive the input focus. Working with keyboard hooks from Delphi. ENTERing TabUsing the Enter key like a Tab key with Delphi controls. Abort a Loop by Pressing a KeyUse the VK_ESCAPE to abort a (for) loop. Use Arrow Keys to Move Between ControlsThe UP and DOWN arrow keys are virtually useless in edit controls. So why not use them for navigating between fields. Simulating Keystrokes from CodeA handy function to simulate the pressing of keyboard keys.

Juliets Growth Since the Start of William Shakespeares...

Juliets Growth Since the Start of William Shakespeares Romeo and Juliet The play â€Å"Romeo and Juliet was written in approximately 1595, by William Shakespeare. It is set in Venice, Italy, in Venetian society women played little role in anything other than to be a wife to their husband and a mother. This is why many Venetian women married at such an early age. The play is about 2 families whom are separated by a long forgotten ancient feud. Throughout the play of ‘Romeo and Juliet’ we see Juliet emerging as a woman. There are many people that influence this growth. However there are also many people which inhibit and even try to prevent her from growing from a child into a woman. Romeo encourages†¦show more content†¦In this scene we see Juliet as a very naà ¯ve character, and in a later scene we see the complete antithesis of her character, where she is no longer a naà ¯ve young girl, who does everything her parents command her to do. We see her as an independent and sophisticated married woman. Act 1 Scene 5 is the scene set at the party at the Capulet’s household. Juliet’s mother introduces her to the County Paris, but before that, she sets eyes on Romeo, of the House of Montague. Romeo is not aware the Juliet is from the house of Capulet, he thinks she is exceptionally beautiful. He describes her as â€Å"a snowy dove, trooping with crows†, the dove symbolises purity, peace and is associated with the colour white, however crows symbolise hatred and are usually associated with the colour black. This can be linked to the theme of the feud which exists between the two households, Juliet is pure, but the rest of her house is filled with hatred and distrust. We then see Juliet’s first move to disobey her mother, she leaves the hall of the ball with Romeo. We see the beginning of Juliet’s journey from a child into an independent woman. We are also made aware of her emerging sexuality. Romeo uses an extended metaphor in an attempt to get Juliet to kiss him; he describes her as a saintly being and himself as a sinner who needs his sins cleansing. Juliet knowsShow MoreRelatedRomeo And Juliet Impulsive Choices Essay1121 Words   |  5 Pageslethargic state. Although William Shakespeare’s Romeo and Juliet shows that teenagers made many impulsive choices in that time period, in society today, teenagers continue to make impetuous decisions. Since the main characters of Shakespeare’s Romeo and Juliet are both growing teenagers, Shakespeare suggests through Romeo and Juliet’s actions that teenagers are motivated by spontaneous instinct, not critical-thinking and reason. Friar Lawrence’s comments after Romeo speaks to him about his new-found

Downtown Mile free essay sample

I was approximately three-quarters of the way through when that familiar numbing feeling began to kick in.My feet were on fire, my legs felt drained, and my arms became weights.In that moment of displeasure, I thought to myself, â€Å"Why am I doing this?†From there I turned my undivided attention from the backside of the competitor ahead of me to internal thoughts in the hopes to find the answer to this question. Tradition has always played a significant role in my family. We will write a custom essay sample on Downtown Mile or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Whether it is a customary practice such as a middle name being passed down through generations of men or an annual event such as a Thanksgiving dinner being generously hosted year after year, I have been raised to cherish all of it.However, my favorite tradition comes around on the final Friday of every August.The Downtown Auburn Mile is a local road race that is basically built up to the magnitude of the Olympics in my family.My parents have been signing my brothers and me up for it since we were kids, and we always looked forward to the race as a way to cap off our summer on a good note.The first time that I ever participated in the Downtown Mile was at seven years old.After my initial run, I was pleased with my time that was narrowly below nine minutes, but it was a very short-lived triumph.When the winners were announced, I was in absolute awe.How was it even possible for someone to complete that entire race before I even finished half?I still remember the name of the man who won that year, along with the few that followed him.These people essentially served as idols for me throughout my youth because of their sheer pride when it came to serving as their hometown champion.It became a title that I coveted, to represent my city in a tradition they embraced so dearly. As I matured, the race’s importance grew as well.I became inspired to join the running teams at my school in order to continue to improve.Running had become more meaningful than ever before.My family started to realize what I could do.My community started to realize what I could do.All I had left was to convince myself of my own capabilities.That realization took place exactly ten years after the first time I set foot on the course of the race.It was a revelation that made me more determined than ever. In a fairly sudden manner, the answer to my question appeared.In that moment I opened up my stride and whizzed right past the leader with my newfound sense of ambition.As I rounded the bend into the final straightaway, there was nothing that could stand in my way.I glanced to my left to find my father shouting words of encouragement along with the remainder of the crowd that lined the street.Why was I doing this?I wasn’t just doing this for all of them. I was doing it for that seven year-old kid who made it his one true goal.On that day, the kid achieved something that he could value for a lifetime.

The Life Of Ira Remsen Essays - Ira Remsen, Sugar Substitutes

The life of Ira Remsen Ira Remsen was born on February 10, 1846 in New York city. Even though he was born in the United States, he was educated in Germany. He received his M.D. at Columbia University in 1867 and he also earned a Ph.D. at the University of Munich and G?ttingen in Germany. After receiving his degrees, Remsen began his investigation in pure chemistry at the University of T?bingen. It was in Germany and in Europe Remsen did most of his research. In 1876 he returned to the United States where his became one of the original faculty of Johns Hopkins University. There he founded the chemistry department. He was an excellent professor who trained a generation of prominent chemists. He was also the Director of the Chemical Laboratory and secretary of the Academic Council. In 1879, he was the founding editor of American Chemical Journal. Also in that same year, he made a remarkable, accidental discovery with a fellow researcher Constantine Fahlberg when they were working on a derivative of coal tar. One night, after a long day in his laboratory He we was having dinner with wife. When he was eating a regular roll. Remsen noticed that it was quite sweet at first, but it left a bitter after-taste. He made his wife taste the bread and he found nothing wrong or something unusual about the taste. So Remsen decided to taste his fingers and there he found that same sweet then bitter taste despite washing his hands thoroughly after working in his lab. After dinner, he returned to his laboratory and started to taste all the chemicals he was handling. When he found that chemical, it was oxidation of o-toluenesulfonamide and he called it saccharin. In 1880, Remsen and Fahlberg published their findings in the February issue of The Chemical Journal. Many people thought that it was Constantine who discovered saccharin, but he stole the formula from Remsen. When they stopped working together, Constantine patented the formula and became filthy rich. As a result Remsen didn't received any credit for the discovery. Constantine received the recognition that Remsen earned and rightfully deserved. Remsen was furious at first about the matter; it makes my blood boil to see the lies that scoundrel Fahlberg constantly, constantly in print, and to see further, that they are generally believed. Later Remsen would apologize for this outburst. Remsen moved to bigger and better things. In 1901, he was appointed President of Johns Hopkins University, there in that same year, he wrote several important textbooks on chemistry. Remsen also found the School of Engineering at Johns Hopkins. He introduced many German laboratory methods into Johns Hopkins and emphasized the university's function as a research centre. At the time at Johns Hopkins he helped establish the school as a leading graduate science teaching institute in the United States, never seeking fame or fortune for his contributions to science. His work on the research-based Doctoral program at Hopkins was considered important improvement to science in the United States. In 1913, Dr. Ira Remsen stepped down as president at Johns Hopkins University. Remsen still continued to keep chemistry the number one priority in his life. He moved and resided in Carmel, California. Until his passing away on March 4, 1927 of natural causes. Saccharin Saccharin is derived from the Latin word saccharum, meaning sugar. Saccharin is also called Ortho-sulfobenzoic acid imide; the formula is C6H4CONHSO2. Saccharin is a synthetic, white, crystalline powder that melts at 228.08 to 229.7 degrees Celsius and very soluble in water. It is 550 times as sweet as sugar cane. And it is also estimated to have a sweetening power 375 times that of sugar. When saccharin is dissolved in water in large amounts, the solution is very bitter. Sweetness is only evident in a diluted solution. Saccharin cannot be digested by the body and has no food values. Those who are diabetic and people who ate on weight reducing diets use it in place of sugar. They used it for the psychological purpose of satisfying a taste for sweetness. Many critics say that that saccharin can itself stimulate the appetite and the production of insulin in the body. For several years, saccharin has been under investigation as a risk for cancer. It was banned in