Desktop Handle

  • Thread starter Thread starter Juan Romero
  • Start date Start date
J

Juan Romero

Hi guys,

Does anyone know how I can get a handle to the desktop or the screen? (of
for this matter, the device context handle)

I want a program to write some stuff there, but I can't seem to get a
handle. I tried calling API functions, but they return me a negative handle
(-99999), so although the calls I make subsequently do not raise any errors,
nothing gets written to the screen.

Please help.
 
* "Juan Romero said:
Does anyone know how I can get a handle to the desktop or the screen? (of
for this matter, the device context handle)

I want a program to write some stuff there, but I can't seem to get a
handle. I tried calling API functions, but they return me a negative handle
(-99999), so although the calls I make subsequently do not raise any errors,
nothing gets written to the screen.
Click to expand...

Did you try it with these declares?

\\\
Private Declare Auto Function GetDesktopWindow Lib "user32.dll" ( _
) As IntPtr
Private Declare Auto Function GetDC Lib "user32.dll" ( _
ByVal hwnd As IntPtr _
) As IntPtr
Private Declare Auto Function ReleaseDC Lib "user32.dll" ( _
ByVal hwnd As IntPtr, _
ByVal hdc As IntPtr _
) As Int32
///
 
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