ddraw.dll

[dexxa]

i am just wondering if i want to draw a dot or a line(many dots) on any windows, do i need to call ddraw.dll? if i do need to use ddraw.dll, wut functions would be right for the job? thank you

[Insolence]

Heading to bed, so I don't have time to do it myself:

Search for 'SetPixel' or maybe 'PixelSet'.

[dexxa]

thx

but can u show me an example? i cant seem to get it to work.

[Insolence]

Sure, now that I have time

http://www.autoitscript.com/forum/index.ph...wtopic=8831&hl=

Not the best example, but it should get the job done. Any questions, feel free to ask.

[layer]

Or... Here's a simpler example, with comments:

Func _PixelSet($WinHandle, $X, $Y, $Color)
    Local $WinHandle, $X, $Y, $Color, $dc
    $dc= DllCall ("user32.dll", "int", "GetDC", "hwnd", ($WinHandle)); get the window handles device context
    DllCall ("gdi32.dll", "long", "SetPixel", "long", $dc[0], "long", $x, "long", $y, "long", $color); the actuall 'SetPixel' function
    DllCall ("user32.dll", "int", "ReleaseDC", "hwnd", 0,  "int", $dc[0]); finally, realese the device context!
EndFunc

And here's a cool example

HotKeySet ("d", "Draw")
HotKeySet ("^e", "MyExit")
MsgBox (4096, "NOTE", "Press 'D' to draw and Ctrl+E to exit... The default color is Green.")
Func SetPixel ($handle, $x, $y, $color)
    $dc= DllCall ("user32.dll", "int", "GetDC", "hwnd", $handle)
    $setpixel= DllCall ("gdi32.dll", "long", "SetPixel", "long", $dc[0], "long", $x, "long", $y, "long", $color)
    $realesedc= DllCall ("user32.dll", "int", "ReleaseDC", "hwnd", 0,  "int", $dc[0])
EndFunc

Func Draw ()
    $pos= MouseGetPos ()
    SetPixel ("", $pos[0], $pos[1], 0x00FF00)
    Sleep (10)
EndFunc

Func MyExit ()
    Exit
    EndFunc

While 1
    Sleep (100)
    WEnd

Press "D" to draw anywhere, and press "E" to exit at anytime To get the dots off the screen, put something over them, like a window or something, or just refresh the screen

Edited April 13, 2005 by layer

[dexxa]

[buzz44]

I drew on my wallpaper and to get rid of it I had to 'refresh' my desktop because when I closed it, it didn't disappear.