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https://github.com/QB64-Phoenix-Edition/QB64pe.git
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88 lines
4.6 KiB
Plaintext
88 lines
4.6 KiB
Plaintext
{{DISPLAYTITLE:_SCREENPRINT}}
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The [[_SCREENPRINT]] statement simulates typing text into a Windows focused program.
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{{PageSyntax}}
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: [[_SCREENPRINT]] {{Parameter|text$}}
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{{PageDescription}}
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* [[Keywords_currently_not_supported_by_QB64#Keywords_Not_Supported_in_Linux_or_MAC_OSX_versions|Keyword not supported in Linux or MAC versions]]
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* {{Parameter|text$}} is the text to be typed into a focused program's text entry area, one character at a time.
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* Set the focus to a desktop program by using the [[_SCREENIMAGE]] handle as the [[_SOURCE]]. Use the image to map the desired area.
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* [[_SCREENCLICK]] can also be used to set the focus to a program's text entry area on the desktop.
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*'''Note: If the focus is not set correctly, the text may be printed to the QB64 IDE, if open, or not printed at all.'''
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* Ctrl + letter key shortcuts can be simulated using the appropriate [[ASCII]] Control character codes 1 to 26 shown below:
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{{WhiteStart}} CTRL + A = CHR$(1) ☺ StartHeader (SOH) CTRL + B = CHR$(2) ☻ StartText (STX)
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CTRL + C = CHR$(3) ♥ EndText (ETX) CTRL + D = CHR$(4) ♦ EndOfTransmit (EOT)
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CTRL + E = CHR$(5) ♣ Enquiry (ENQ) CTRL + F = CHR$(6) ♠ Acknowledge (ACK)
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CTRL + G = CHR$(7) • [[BEEP]] (BEL) CTRL + H = CHR$(8) ◘ '''[Backspace]''' (BS)
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CTRL + I = CHR$(9) ○ Horiz.Tab '''[Tab]''' CTRL + J = CHR$(10) ◙ LineFeed(printer) (LF)
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CTRL + K = CHR$(11) ♂ Vert. Tab (VT) CTRL + L = CHR$(12) ♀ FormFeed(printer) (FF)
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CTRL + M = CHR$(13) ♪ '''[Enter]''' (CR) CTRL + N = CHR$(14) ♫ ShiftOut (SO)
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CTRL + O = CHR$(15) ☼ ShiftIn (SI) CTRL + P = CHR$(16) ► DataLinkEscape (DLE)
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CTRL + Q = CHR$(17) ◄ DevControl1 (DC1) CTRL + R = CHR$(18) ↕ DeviceControl2 (DC2)
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CTRL + S = CHR$(19) ‼ DevControl3 (DC3) CTRL + T = CHR$(20) ¶ DeviceControl4 (DC4)
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CTRL + U = CHR$(21) § NegativeACK (NAK) CTRL + V = CHR$(22) ▬ Synchronous Idle (SYN)
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CTRL + W = CHR$(23) ↨ EndTXBlock (ETB) CTRL + X = CHR$(24) ↑ Cancel (CAN)
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CTRL + Y = CHR$(25) ↓ EndMedium (EM) CTRL + Z = CHR$(26) → End Of File(SUB) (EOF)
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{{WhiteEnd}}
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{{PageExamples}}
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''Example:'' Printing text into a Windows text editor (Notepad) and copying to the clipboard. May not work on all systems.
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{{CodeStart}} '' ''
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{{Cl|DEFLNG}} A-Z
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{{Cl|SCREEN (statement)|SCREEN}} {{Cl|_NEWIMAGE}}(640, 480, 32)
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{{Cl|PRINT}} "OPENing and MAXIMIZING Notepad in 5 seconds..."; : {{Cl|_DELAY}} 5
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{{Cl|SHELL}} {{Cl|_DONTWAIT}} "START /MAX NotePad.exe" 'opens Notepad file "untitled.txt"
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'detect notepad open and maximized
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'condition: 80% or more of the screen is white
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{{Cl|DO}} 'read the desktop screen image for maximized window
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s = {{Cl|_SCREENIMAGE}}
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{{Cl|_SOURCE}} s
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z = 0
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{{Cl|FOR...NEXT|FOR}} y = 0 {{Cl|TO}} {{Cl|_HEIGHT}}(s) - 1 'scan for large white area
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{{Cl|FOR...NEXT|FOR}} x = 0 {{Cl|TO}} _{{Cl|WIDTH}}(s) - 1
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c = {{Cl|POINT}}(x, y)
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{{Cl|IF}} c = {{Cl|_RGB32}}(255, 255, 255) {{Cl|THEN}} z = z + 1
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{{Cl|NEXT}}
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{{Cl|NEXT}}
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{{Cl|IF}} z / ({{Cl|_HEIGHT}}(s) * _{{Cl|WIDTH}}(s)) > 0.8 {{Cl|THEN}} {{Cl|EXIT DO}} 'when 80% of screen is white
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{{Cl|_FREEIMAGE}} s 'free desktop image
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{{Cl|_LIMIT}} 1 'scans 1 loop per second
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{{Cl|PRINT}} ".";
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{{Cl|LOOP}}
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{{Cl|PRINT}}
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{{Cl|PRINT}} "NOTEPAD detected as OPEN and MAXIMIZED"
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{{Cl|_SCREENPRINT}} "HELLO WORLD"
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{{Cl|SLEEP}} 2
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{{Cl|_SCREENPRINT}} {{Cl|CHR$}}(8) + {{Cl|CHR$}}(8) + {{Cl|CHR$}}(8) + {{Cl|CHR$}}(8) + {{Cl|CHR$}}(8) 'backspace 5 characters
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{{Cl|SLEEP}} 3
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{{Cl|_SCREENPRINT}} "QB64!"
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{{Cl|SLEEP}} 2
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{{Cl|_SCREENPRINT}} {{Cl|CHR$}}(1) 'CTRL + A select all
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{{Cl|SLEEP}} 2
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{{Cl|_SCREENPRINT}} {{Cl|CHR$}}(3) 'CTRL + C copy to clipboard
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{{Cl|SLEEP}} 2
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{{Cl|PRINT}} {{Cl|_CLIPBOARD$}}
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{{Cl|_CLIPBOARD$ (statement)|_CLIPBOARD$}} = "QB64 ROCKS!"
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{{Cl|SLEEP}} 2
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{{Cl|_SCREENPRINT}} {{Cl|CHR$}}(22) 'CTRL + V paste from clipboard
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{{Cl|END}} '' ''
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{{CodeEnd}}
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{{small|Code by Galleon}}
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:''Explanation:'' If the Windows shortcuts are set up properly, printing ASCII Control characters acts like the user selected the control + letter combinations to ''Select all'' (CHR$(1)), ''Copy'' (CHR$(3)) and ''Paste'' (CHR$(22)) the text with the Windows Clipboard. If the editor program's CTRL key combinations are different, use the matching letter [[ASCII]] code from A = 1 to Z = 26 in the text editor.
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{{PageSeeAlso}}
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* [[_SCREENIMAGE]], [[_SCREENCLICK]]
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* [[_SCREENMOVE]], [[_SCREENX]], [[_SCREENY]]
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* [[ASCII]]
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{{PageNavigation}}
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