Need help at a PTC Function

#define ADR_ENGINE						0x485FF0

void CombatArms::ConsolePush(const char *szCommand) {
	__asm {
		PUSH szCommand
		MOV EAX, ADR_ENGINE
		CALL EAX
		ADD ESP, 4
	}
}

CombatArms *ca = new CombatArms();

while (true) {
		if (GetAsyncKeyState(VK_F10)&1) {
			ca->ConsolePush("ShowFps 1");
		}
	}

HRESULT WINAPI myPresent(LPDIRECT3DDEVICE9 pDevice, CONST RECT *pSourceRect, CONST RECT *pDestRect, HWND hDestWindowOverride, CONST RGNDATA *pDirtyRegion)
{
	while (true) {
		if (GetAsyncKeyState(VK_F10)&1) {
			ca->ConsolePush("ShowFps 1");
		}
	}


	return pPresent(pDevice, pSourceRect, pDestRect, hDestWindowOverride, pDirtyRegion);
}