dx.cpp

#include "includes.h"

int window_height, window_width;

BOOL CALLBACK enumWind(HWND handle, LPARAM lp) {
	DWORD windowProcessID;
	GetWindowThreadProcessId(handle, &windowProcessID);
	if (GetCurrentProcessId() != windowProcessID)
		return TRUE;
	window = handle;
	return FALSE;
}

HWND GetProcessWindow() {
	window = NULL;
	EnumWindows(enumWind, NULL);
	RECT size;
	GetWindowRect(window, &size);
	window_width = size.right - size.left;
	window_height = size.bottom - size.top;
	window_height -= 29;
	window_width -= 5;
	return window;
}

bool GetD3D9Device(void** pTable, size_t size) {
	if (!pTable)
		return false;
	IDirect3D9* pD3D = Direct3DCreate9(D3D_SDK_VERSION);
	if (!pD3D)
		return false;
	IDirect3DDevice9* pDummyDevice = nullptr;
	D3DPRESENT_PARAMETERS d3dpp = {};
	d3dpp.Windowed = false;
	d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
	d3dpp.hDeviceWindow = GetProcessWindow();
	HRESULT dummyDeviceCreated = pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
		d3dpp.hDeviceWindow, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &pDummyDevice);
	if (dummyDeviceCreated != S_OK) {
		d3dpp.Windowed = !d3dpp.Windowed;
		HRESULT dummyDeviceCreated = pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
			d3dpp.hDeviceWindow, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &pDummyDevice);
		if (dummyDeviceCreated != S_OK) {
			pD3D->Release();
			return false;
		}
	}
	memcpy(pTable, *(void***) (pDummyDevice), size);
	pDummyDevice->Release();
	pD3D->Release();
	return true;
}