Fix [#26981] Command window is not opening in 2.57.0

  Reported by Thomas Engel
Fix [#26938] Blender Zoom not working after startup (Windows)
  Reported by Ilija Boshkov

by applying patch [#26881] Fix for console disappearing in debug mode [Windows]
  Submitted by Alexander Kuznetsov (AlexK)

The patch moves console toggling code into GHOST and improves on the toggling behaviour.

The patch changes handling of WM_SYSCOMMAND so that alt-key toggling isn't a problem anymore.

5 files changed, 87 insertions, 3 deletions

diff --git a/intern/ghost/GHOST_C-api.h b/intern/ghost/GHOST_C-api.h
index be8dc138797..75837239c4a 100644
--- a/intern/ghost/GHOST_C-api.h
+++ b/intern/ghost/GHOST_C-api.h
@@ -845,6 +845,18 @@ extern GHOST_TUns8* GHOST_getClipboard(int selection);
 extern void GHOST_putClipboard(GHOST_TInt8 *buffer, int selection);
 
 
+
+/**
+ * Toggles console
+ * @action	0 - Hides
+ *			1 - Shows
+ *			2 - Toggles
+ *			3 - Hides if it runs not from  command line
+ *			* - Does nothing
+ * @return current status (1 -visible, 0 - hidden)
+ */
+extern int GHOST_toggleConsole(int action);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/intern/ghost/GHOST_ISystem.h b/intern/ghost/GHOST_ISystem.h
index 38c732153d7..69e10070be5 100644
--- a/intern/ghost/GHOST_ISystem.h
+++ b/intern/ghost/GHOST_ISystem.h
@@ -355,6 +355,16 @@ public:
 	 */
 	virtual GHOST_TSuccess getButtonState(GHOST_TButtonMask mask, bool& isDown) const = 0;
 
+	/**
+	 * Toggles console
+	 * @action	0 - Hides
+	 *			1 - Shows
+	 *			2 - Toggles
+	 *			3 - Hides if it runs not from  command line
+	 *			* - Does nothing
+	 * @return current status (1 -visible, 0 - hidden)
+	 */
+	virtual int toggleConsole(int action) = 0;
 	
 	/***************************************************************************************
 	 ** Access to clipboard.
diff --git a/intern/ghost/intern/GHOST_C-api.cpp b/intern/ghost/intern/GHOST_C-api.cpp
index a1e1bafa82f..7ba8d7db411 100644
--- a/intern/ghost/intern/GHOST_C-api.cpp
+++ b/intern/ghost/intern/GHOST_C-api.cpp
@@ -877,3 +877,9 @@ void GHOST_putClipboard(GHOST_TInt8 *buffer, int selection)
 	GHOST_ISystem* system = GHOST_ISystem::getSystem();
 	system->putClipboard(buffer, selection);
 }
+
+int GHOST_toggleConsole(int action)
+{
+	GHOST_ISystem* system = GHOST_ISystem::getSystem();
+	return system->toggleConsole(action);
+}
diff --git a/intern/ghost/intern/GHOST_SystemWin32.cpp b/intern/ghost/intern/GHOST_SystemWin32.cpp
index dc16711b532..c901c402716 100644
--- a/intern/ghost/intern/GHOST_SystemWin32.cpp
+++ b/intern/ghost/intern/GHOST_SystemWin32.cpp
@@ -174,6 +174,8 @@ GHOST_SystemWin32::GHOST_SystemWin32()
 	GHOST_ASSERT(m_displayManager, "GHOST_SystemWin32::GHOST_SystemWin32(): m_displayManager==0\n");
 	m_displayManager->initialize();
 
+	m_consoleStatus = 1;
+
 	// Check if current keyboard layout uses AltGr and save keylayout ID for
 	// specialized handling if keys like VK_OEM_*. I.e. french keylayout
 	// generates VK_OEM_8 for their exclamation key (key left of right shift)
@@ -186,6 +188,7 @@ GHOST_SystemWin32::~GHOST_SystemWin32()
 {
 	// Shutdown COM
 	OleUninitialize();
+	toggleConsole(1);
 }
 
 
@@ -847,7 +850,14 @@ LRESULT WINAPI GHOST_SystemWin32::s_wndProc(HWND hwnd, UINT msg, WPARAM wParam,
 					 * a dead key that is pressed while holding down the alt key.
 					 * To prevent the sound, DefWindowProc must be avoided by return
 					 */
-					return 0;
+					break;
+				case WM_SYSCOMMAND:
+					/* The WM_SYSCHAR message is sent to the window when system commands such as 
+					 * maximize, minimize  or close the window are triggered. Also it is sent when ALT 
+					 * button is press for menu. To prevent this we must return preventing DefWindowProc.
+					 */
+					if(wParam==SC_KEYMENU) return 0;
+					break;
 				////////////////////////////////////////////////////////////////////////
 				// Tablet events, processed
 				////////////////////////////////////////////////////////////////////////
@@ -1047,8 +1057,12 @@ LRESULT WINAPI GHOST_SystemWin32::s_wndProc(HWND hwnd, UINT msg, WPARAM wParam,
 					 * DestroyWindow function sends the WM_NCDESTROY message to the window following the WM_DESTROY
 					 * message. WM_DESTROY is used to free the allocated memory object associated with the window. 
 					 */
+					break;
 				case WM_KILLFOCUS:
-					/* The WM_KILLFOCUS message is sent to a window immediately before it loses the keyboard focus. */
+					/* The WM_KILLFOCUS message is sent to a window immediately before it loses the keyboard focus. 
+					 * We want to prevent this if a window is still active and it loses focus to nowhere*/
+					if(!wParam && hwnd==GetActiveWindow())
+						SetFocus(hwnd);
 				case WM_SHOWWINDOW:
 					/* The WM_SHOWWINDOW message is sent to a window when the window is about to be hidden or shown. */
 				case WM_WINDOWPOSCHANGING:
@@ -1196,3 +1210,32 @@ void GHOST_SystemWin32::putClipboard(GHOST_TInt8 *buffer, bool selection) const
 		return;
 	}
 }
+
+int GHOST_SystemWin32::toggleConsole(int action)
+{
+	switch(action)
+	{
+		case 3: //hide if no console
+			{
+			CONSOLE_SCREEN_BUFFER_INFO csbi = {{0}};
+			if(!GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi) || csbi.dwCursorPosition.X || csbi.dwCursorPosition.Y>1)
+				break;
+			}
+		case 0: //hide
+			ShowWindow(GetConsoleWindow(),SW_HIDE);
+			m_consoleStatus = 0;
+			break;
+		case 1: //show
+			ShowWindow(GetConsoleWindow(),SW_SHOW);
+			m_consoleStatus = 1;
+			break;
+		case 2: //toggle
+			ShowWindow(GetConsoleWindow(),m_consoleStatus?SW_HIDE:SW_SHOW);
+			m_consoleStatus=!m_consoleStatus;
+			break;
+
+	};
+
+
+	return m_consoleStatus;
+}
diff --git a/intern/ghost/intern/GHOST_SystemWin32.h b/intern/ghost/intern/GHOST_SystemWin32.h
index d79b9a22b69..2dad3a6f44d 100644
--- a/intern/ghost/intern/GHOST_SystemWin32.h
+++ b/intern/ghost/intern/GHOST_SystemWin32.h
@@ -415,6 +415,17 @@ protected:
 	 * Initiates WM_INPUT messages from keyboard 
 	 */
 	GHOST_TInt32 initKeyboardRawInput(void);
+
+	/**
+ * Toggles console
+ * @action	0 - Hides
+ *			1 - Shows
+ *			2 - Toggles
+ *			3 - Hides if it runs not from  command line
+ *			* - Does nothing
+ * @return current status (1 -visible, 0 - hidden)
+ */
+	int toggleConsole(int action);
 	
 	/** The current state of the modifier keys. */
 	GHOST_ModifierKeys m_modifierKeys;
@@ -431,6 +442,9 @@ protected:
 	/** stores keyboard layout. */
 	HKL m_keylayout;
 
+	/** Console status */
+	int m_consoleStatus;
+
 	/** handle for user32.dll*/
 	HMODULE user32;
 	#ifdef NEED_RAW_PROC
@@ -471,6 +485,5 @@ inline void GHOST_SystemWin32::handleKeyboardChange(void)
 		}
 	}
 }
-
 #endif // _GHOST_SYSTEM_WIN32_H_