Problem with clipboard

[minor28]

I have copied a image from mspaint to clipboard.

This is my command button code. Neither CF_BITMAP nor CF_DIB works.

Code Select Expand


invoke OpenClipboard,0
invoke IsClipboardFormatAvailable,CF_BITMAP
.if eax
invoke GetClipboardData,CF_BITMAP
.if eax
nop
.else
invoke GetLastError
.endif
.endif
invoke closeClipboard


OpenClipboard returns TRUE
IsClipboardFormatAvailable returns TRUE
GetClipboardData returns 0
and GetLastError gives errorcode for "Thread does not have a clipboard open".

With Clipbrd.exe I can see the image but my code will not work. Cannot figure out what's wrong. Any suggestions how to solve this?

Best regards

[dedndave]

not sure this applies, but.....

Not all clipboard commands are available to the user at any given time. An application should process the
WM_INITMENUPOPUP message to enable the menu items for available commands and disable unavailable commands.

http://msdn.microsoft.com/en-us/library/ms649016%28v=VS.85%29.aspx

[jj2007]

The picture is huge? Then try this link.

[donkey]

Try using a window handle for the OpenClipboard call.

[Coma]

Try what donkey said.
But first of all you should close the clipboard using 'CloseClipboard'

[minor28]

Thank you for your answers.

If I close the clipboard and then open it it will work with handle equ 0 as Coma suggested.

Earlier I have tryed to use a window handle for the OpenClipboard call without success. But suddenly it works with a window handle. I have been strugling with the problem a longer time so I must have changed something so it will work with a handle. So it will work as Donkey suggested without closing but with a window handle.

My huge images can't be loaded via clipboard. Mspaint uses over 1GB memory and memory page almost 2 GB before I have to terminate the app. Must be saved as files.

My WM_INITMENUPOPUP already enables and disables commands.

Thank you very much for your help.
Regards