Well, that's the question. I HAD a method in DX9, but I can't seem to find my example. I don't even think it would work with DX11 anyway.

That's a place to start, but I would like to have the available as the program runs; creating and destroying textures..... I do need what you showed me, but I need more.

I compared the memory info with what DX Caps program was showing me. It turns out my program is using the on-board video card and not my NVIDIA card. I have tried to change which adapter it uses, but it keeps crashing on my "EnumOutputs()" function.

on-the-fly amount of available video memory.

NEW: my laptop has 2 video cards available: the on-board one and the NVIDIA installed as the one I want to use for all games (which it seems to use for them except my program).

I need to learn how to tell the program that I want to use the NVIDIA instead of the on-board one. My attempts so far are failing at "EnumOutputs()" function. I need more info......STUDY!

I suppose I could just keep track of the memory usage and not exceed it. The reason I wanted to do it on-the-fly is that I would scale down images to keep it away from the limit as needed.

Hodgeman, do you know of an easy to read example to select the second video card? I know it can be done because the DX examples can do it. The problem with the DX examples is that they are VERY hard to follow. Here is a code snippet of the problem area:

	result = CreateDXGIFactory(__uuidof(IDXGIFactory), (void**)&factory);
	if(FAILED(result))
	{
		MessageBox(hWnd, "create factory.", "Error", MB_OK);
		return false;
	}

UINT WhichAdapter=1;
UINT q=0;
//vector <IDXGIAdapter*> vAdapter;
while (factory->EnumAdapters(q,&adapter)!=DXGI_ERROR_NOT_FOUND){
	DXGI_ADAPTER_DESC pDesc;
	adapter->GetDesc(&pDesc);
	testString+=*vString(q)+" ";
	for (int z=0;z<128;z++){
		if (pDesc.Description[z]!='\0')
		testString+=pDesc.Description[z];
		else break;
	}
	testString+="\n";
	q++;
}



	// Use the factory to create an adapter for the primary graphics interface (video card).
	result = factory->EnumAdapters(0, &adapter);
	if(FAILED(result))
	{
		MessageBox(hWnd, "enum adapters.", "Error", MB_OK);
		return false;
	}

	// Enumerate the primary adapter output (monitor).
	result = adapter->EnumOutputs(0, &adapterOutput);
	if(FAILED(result))
	{
		MessageBox(hWnd, "enum outputs.", "Error", MB_OK);
		return false;
	}

I can view the available video adapters by way of the string I display once D3D is running. 0 is the on-board video and 1 is the NVIDIA card. If I put a 1 in the EnumAdapters(1,&adapter) line it fails at EnumOutputs. I'm stumped.......

extern "C"
{
	__declspec(dllexport) DWORD NvOptimusEnablement = 1;
	__declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
}