what is HInstance?

[Frank Lee]

Bitmap has a method named FromResource, which has two params, one is
HInstance intptr, the other is resourcename. I don't understand what
HInstance is. How to get it?


Thanks


---Frank

 

[Morten Wennevik]

Hi Frank,

hInstance is from the basic windows API. FromResource requires a file handle to a resource dll.

You can get a file handle using CreateFile from Kernel32.dll. And you need to use pInvoke to be able to use CreateFile.

For knowledge on how to pInvoke methods:

http://www.pinvoke.net/

For specific information and sample code on CreateFile:

http://www.pinvoke.net/default.aspx/kernel32.CreateFile

 

[Mattias Sjögren]

hInstance is from the basic windows API. FromResource requires a file handle to a resource dll.

You can get a file handle using CreateFile from Kernel32.dll. And you need to use pInvoke to be able to use CreateFile.

A HINSTANCE isn't the same as a file handle. You get a module's
HINSTANCE from APIs like LoadLibrary[Ex] and GetModuleHandle[Ex].



Mattias

 

[Morten Wennevik]

Sorry about that, the help description of Bitmap.FromResource had me confused :/

hinstance -> A handle to an instance of the executable file that contains the resource.

hInstance is from the basic windows API. FromResource requires a file handle to a resource dll.

You can get a file handle using CreateFile from Kernel32.dll. And you need to use pInvoke to be able to use CreateFile.

A HINSTANCE isn't the same as a file handle. You get a module's
HINSTANCE from APIs like LoadLibrary[Ex] and GetModuleHandle[Ex].



Mattias