imgui input capture/stifle

hw3d/Window.cpp

@@ -183,6 +183,7 @@ LRESULT Window::HandleMsg( HWND hWnd,UINT msg,WPARAM wParam,LPARAM lParam ) noex
 	{
 		return true;
 	}
+	const auto imio = ImGui::GetIO();
 
 	switch( msg )
 	{
@@ -200,6 +201,11 @@ LRESULT Window::HandleMsg( HWND hWnd,UINT msg,WPARAM wParam,LPARAM lParam ) noex
 	case WM_KEYDOWN:
 	// syskey commands need to be handled to track ALT key (VK_MENU) and F10
 	case WM_SYSKEYDOWN:
+		// stifle this keyboard message if imgui wants to capture
+		if( imio.WantCaptureKeyboard )
+		{
+			break;
+		}
 		if( !(lParam & 0x40000000) || kbd.AutorepeatIsEnabled() ) // filter autorepeat
 		{
 			kbd.OnKeyPressed( static_cast<unsigned char>(wParam) );
@@ -207,9 +213,19 @@ LRESULT Window::HandleMsg( HWND hWnd,UINT msg,WPARAM wParam,LPARAM lParam ) noex
 		break;
 	case WM_KEYUP:
 	case WM_SYSKEYUP:
+		// stifle this keyboard message if imgui wants to capture
+		if( imio.WantCaptureKeyboard )
+		{
+			break;
+		}
 		kbd.OnKeyReleased( static_cast<unsigned char>(wParam) );
 		break;
 	case WM_CHAR:
+		// stifle this keyboard message if imgui wants to capture
+		if( imio.WantCaptureKeyboard )
+		{
+			break;
+		}
 		kbd.OnChar( static_cast<unsigned char>(wParam) );
 		break;
 	/*********** END KEYBOARD MESSAGES ***********/
@@ -217,6 +233,11 @@ LRESULT Window::HandleMsg( HWND hWnd,UINT msg,WPARAM wParam,LPARAM lParam ) noex
 	/************* MOUSE MESSAGES ****************/
 	case WM_MOUSEMOVE:
 	{
+		// stifle this mouse message if imgui wants to capture
+		if( imio.WantCaptureMouse )
+		{
+			break;
+		}
 		const POINTS pt = MAKEPOINTS( lParam );
 		// in client region -> log move, and log enter + capture mouse (if not previously in window)
 		if( pt.x >= 0 && pt.x < width && pt.y >= 0 && pt.y < height )
@@ -246,19 +267,34 @@ LRESULT Window::HandleMsg( HWND hWnd,UINT msg,WPARAM wParam,LPARAM lParam ) noex
 	}
 	case WM_LBUTTONDOWN:
 	{
+		SetForegroundWindow( hWnd );
+		// stifle this mouse message if imgui wants to capture
+		if( imio.WantCaptureMouse )
+		{
+			break;
+		}
 		const POINTS pt = MAKEPOINTS( lParam );
 		mouse.OnLeftPressed( pt.x,pt.y );
-		SetForegroundWindow( hWnd );
 		break;
 	}
 	case WM_RBUTTONDOWN:
 	{
+		// stifle this mouse message if imgui wants to capture
+		if( imio.WantCaptureMouse )
+		{
+			break;
+		}
 		const POINTS pt = MAKEPOINTS( lParam );
 		mouse.OnRightPressed( pt.x,pt.y );
 		break;
 	}
 	case WM_LBUTTONUP:
 	{
+		// stifle this mouse message if imgui wants to capture
+		if( imio.WantCaptureMouse )
+		{
+			break;
+		}
 		const POINTS pt = MAKEPOINTS( lParam );
 		mouse.OnLeftReleased( pt.x,pt.y );
 		// release mouse if outside of window
@@ -271,6 +307,11 @@ LRESULT Window::HandleMsg( HWND hWnd,UINT msg,WPARAM wParam,LPARAM lParam ) noex
 	}
 	case WM_RBUTTONUP:
 	{
+		// stifle this mouse message if imgui wants to capture
+		if( imio.WantCaptureMouse )
+		{
+			break;
+		}
 		const POINTS pt = MAKEPOINTS( lParam );
 		mouse.OnRightReleased( pt.x,pt.y );
 		// release mouse if outside of window
@@ -283,6 +324,11 @@ LRESULT Window::HandleMsg( HWND hWnd,UINT msg,WPARAM wParam,LPARAM lParam ) noex
 	}
 	case WM_MOUSEWHEEL:
 	{
+		// stifle this mouse message if imgui wants to capture
+		if( imio.WantCaptureMouse )
+		{
+			break;
+		}
 		const POINTS pt = MAKEPOINTS( lParam );
 		const int delta = GET_WHEEL_DELTA_WPARAM( wParam );
 		mouse.OnWheelDelta( pt.x,pt.y,delta );