SDL and Win32

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Original post by agi_shi Ok. Say that I have a window made from pure win32 code. Is it possible to let SDL use the existing HWND and draw onto that? This would allow for some cool things like menues and stuff from win32, and yet SDL drawing [grin]. I know it's possible to get the HWND from SDL's window, but I don't know about what I said above. EDIT: I searched google, but saw nothing about this...

There is a thing called the SDL_WINDOWID hack. Its not pretty, nor portable( 2 of the main advantages of using SDL IMO).

see here.

(tip: its the one called SDL_WINDOWID [grin])

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Original post by rip-off Quote: Original post by agi_shi Ok. Say that I have a window made from pure win32 code. Is it possible to let SDL use the existing HWND and draw onto that? This would allow for some cool things like menues and stuff from win32, and yet SDL drawing [grin]. I know it's possible to get the HWND from SDL's window, but I don't know about what I said above. EDIT: I searched google, but saw nothing about this... There is a thing called the SDL_WINDOWID hack. Its not pretty, nor portable( 2 of the main advantages of using SDL IMO). see here. (tip: its the one called SDL_WINDOWID [grin])

Umm.... Thanks for the 'tip' [grin].

So, if I understand correctly then I need to set the SDL environment variable called SDL_WINDOWID to the correct window id....

How would one go about getting the win32 window 'id'? I'm not sure what they mean by 'id'...

Thanks for the quick reply.

The HWND is the value to set SDL_WINDOWID to I think.

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Original post by rip-off The HWND is the value to set SDL_WINDOWID to I think.

Hmm... That's what I thought. It was just a typedef'ed pointer, right?

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Original post by rip-off The HWND is the value to set SDL_WINDOWID to I think.

Wow, what an interesting effect!

After setting everything up, and setting up the SDL_SetVideoMode (it fails without that), two windows appear. The SDL one which has my example on it, and a win32 window. It seems, though, that the SDL window events are sent to the same event system as the win32 window. Clicking close on the SDL one closes both, and clicking close on the win32 closes both aswell....

Does anyone have any ideas on this? Have two windows wasn't my idea...

Interesting: Not "ShowWindow(...)"ing the win32 window makes only the SDL window show...

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Original post by agi_shi Quote: Original post by rip-off The HWND is the value to set SDL_WINDOWID to I think. Wow, what an interesting effect! After setting everything up, and setting up the SDL_SetVideoMode (it fails without that), two windows appear. The SDL one which has my example on it, and a win32 window. It seems, though, that the SDL window events are sent to the same event system as the win32 window. Clicking close on the SDL one closes both, and clicking close on the win32 closes both aswell.... Does anyone have any ideas on this? Have two windows wasn't my idea... Interesting: Not "ShowWindow(...)"ing the win32 window makes on the SDL window show...

I don't know. You set the environmental variable before your first call to SetVideoMode?

I have 0 experience with winAPI BTW, i use SDL so i don't need to know about it...

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Original post by rip-off Quote: Original post by agi_shi Quote: Original post by rip-off The HWND is the value to set SDL_WINDOWID to I think. Wow, what an interesting effect! After setting everything up, and setting up the SDL_SetVideoMode (it fails without that), two windows appear. The SDL one which has my example on it, and a win32 window. It seems, though, that the SDL window events are sent to the same event system as the win32 window. Clicking close on the SDL one closes both, and clicking close on the win32 closes both aswell.... Does anyone have any ideas on this? Have two windows wasn't my idea... Interesting: Not "ShowWindow(...)"ing the win32 window makes on the SDL window show... I don't know. You set the environmental variable before your first call to SetVideoMode? I have 0 experience with winAPI BTW, i use SDL so i don't need to know about it...

Yup.... Quite interesting. Let's hear some of the WINAPI gurus that roam GDnet. [grin]

As for experience, me neither. All I know is that a HWND is a 'handle' to the window. [smile]