Obtain hinstance for hdc

[vinayak4gargya]

Hi
Is there a way to obtain the hinstance of my program from the hdc value??
Just poking around!

[VladimirF]

Is there a way to obtain the hinstance of my program from the hdc value??

Sure, and you don't even need hdc for that.
Your hInstance most likely is 0x00400000. Check in your debugger!

[ejmw]

Yeah. Use ::WindowFromDC(HDC) to get the HWND, then use ::GetWindowLong(HWND, GWL_HINSTANCE) to get the instance handle.

[VictorN]

Note also that ::WindowFromDC can return NULL if no window is associated with the specified DC.

[ovidiucucu]

Is there a way to obtain the hinstance of my program from the hdc value??

No.
hinstance & hdc = granny & machinegun

[ahmd]

VladimirF, is technically right -- a handle for HINSTANCE is most likely to be the same value for most 32-bit processes. It is actually passed into your application in the WinMain() function. Technically speaking the HINSTANCE is partially a rudiment that was carried over from 16-bit Windows and by itself could not be used to uniquely identify a process. Here's some information for you to understand what it is used for:
http://blogs.msdn.com/b/oldnewthing/...18/409205.aspx

So if you need to specifically link a resource to a certain process a better way would be to tie it up to a process ID.