Examples: Apple: standardize activation and bringing to front.

+ fix warnings.

# Conflicts:
#	backends/imgui_impl_metal4.mm

backends/imgui_impl_metal4.mm

@@ -139,7 +139,7 @@ void ImGui_ImplMetal4_NewFrame(MTL4RenderPassDescriptor* renderPassDescriptor, i
 {
     ImGui_ImplMetal4_Data* bd = ImGui_ImplMetal4_GetBackendData();
     IM_ASSERT(bd != nil && "Context or backend not initialized! Did you call ImGui_ImplMetal4_Init()?");
-    IM_ASSERT(frameInFlightIndex < bd->SharedMetalContext.framesInFlight && "frameInFlightIndex out of range! See framesInFlight passed to ImGui_ImplMetal4_Init().");
+    IM_ASSERT(frameInFlightIndex < (int)bd->SharedMetalContext.framesInFlight && "frameInFlightIndex out of range! See framesInFlight passed to ImGui_ImplMetal4_Init().");
 #ifdef IMGUI_IMPL_METAL_CPP
     bd->SharedMetalContext.framebufferDescriptor = [[[FramebufferDescriptor alloc] initWithRenderPassDescriptor:renderPassDescriptor]autorelease];
 #else
@@ -479,7 +479,7 @@ bool ImGui_ImplMetal4_Init(id<MTLDevice> device, id<MTL4CommandQueue> commandQue
     bd->SharedMetalContext.commandQueue = commandQueue;
     bd->SharedMetalContext.framesInFlight = (NSUInteger)framesInFlight;
     NSMutableArray<NSMutableArray<MetalBuffer*>*>* bufferCaches = [NSMutableArray array];
-    for (NSUInteger i = 0; i < framesInFlight; i++)
+    for (NSUInteger i = 0; i < (NSUInteger)framesInFlight; i++)
         [bufferCaches addObject:[NSMutableArray array]];
     bd->SharedMetalContext.bufferCaches = bufferCaches;
     return true;

examples/example_apple_metal/main.mm

@@ -111,7 +111,6 @@
 
 #if TARGET_OS_OSX
     ImGui_ImplOSX_Init(self.view);
-    [NSApp activateIgnoringOtherApps:YES];
 #endif
 }
 
@@ -285,6 +284,8 @@
     [appMenuItem setSubmenu:appMenu];
     [mainMenuBar addItem:appMenuItem];
     [NSApp setMainMenu:mainMenuBar];
+
+    [NSApp activateIgnoringOtherApps:YES];
 }
 
 -(BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender
@@ -349,7 +350,6 @@ int main(int, const char**)
         AppDelegate *appDelegate = [[AppDelegate alloc] init];   // creates window
         [NSApp setDelegate:appDelegate];
 
-        [NSApp activateIgnoringOtherApps:YES];
         [NSApp run];
     }
     return 0;

examples/example_apple_metal4/main.mm

@@ -117,7 +117,6 @@
 
 #if TARGET_OS_OSX
     ImGui_ImplOSX_Init(self.view);
-    [NSApp activateIgnoringOtherApps:YES];
 #endif
 }
 
@@ -301,6 +300,8 @@
     [appMenuItem setSubmenu:appMenu];
     [mainMenuBar addItem:appMenuItem];
     [NSApp setMainMenu:mainMenuBar];
+
+    [NSApp activateIgnoringOtherApps:YES];
 }
 
 -(BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender
@@ -365,7 +366,6 @@ int main(int, const char**)
         AppDelegate *appDelegate = [[AppDelegate alloc] init];   // creates window
         [NSApp setDelegate:appDelegate];
 
-        [NSApp activateIgnoringOtherApps:YES];
         [NSApp run];
     }
     return 0;

examples/example_apple_opengl2/main.mm

@@ -209,10 +209,6 @@
 
 -(void)applicationDidFinishLaunching:(NSNotification *)aNotification
 {
-    // Make the application a foreground application (else it won't receive keyboard events)
-    ProcessSerialNumber psn = {0, kCurrentProcess};
-    TransformProcessType(&psn, kProcessTransformToForegroundApplication);
-
     // Menu
     [self setupMenu];
 
@@ -236,6 +232,8 @@
         NSLog(@"No OpenGL Context!");
 
     [view initialize];
+
+    [NSApp activateIgnoringOtherApps:YES];
 }
 
 @end
@@ -244,14 +242,17 @@
 // Application main() function
 //-----------------------------------------------------------------------------------
 
-int main(int argc, const char* argv[])
+int main(int, const char**)
 {
     @autoreleasepool
     {
-        NSApp = [NSApplication sharedApplication];
+        [NSApplication sharedApplication];
-        AppDelegate* delegate = [[AppDelegate alloc] init];
+        [NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
-        [[NSApplication sharedApplication] setDelegate:delegate];
+
+        AppDelegate* appDelegate = [[AppDelegate alloc] init];
+        [NSApp setDelegate:appDelegate];
+
         [NSApp run];
     }
-    return NSApplicationMain(argc, argv);
+    return 0;
 }

examples/example_apple_opengl3/main.mm

@@ -209,10 +209,6 @@
 
 -(void)applicationDidFinishLaunching:(NSNotification *)aNotification
 {
-    // Make the application a foreground application (else it won't receive keyboard events)
-    ProcessSerialNumber psn = {0, kCurrentProcess};
-    TransformProcessType(&psn, kProcessTransformToForegroundApplication);
-
     // Menu
     [self setupMenu];
 
@@ -237,6 +233,8 @@
         NSLog(@"No OpenGL Context!");
 
     [view initialize];
+
+    [NSApp activateIgnoringOtherApps:YES];
 }
 
 @end
@@ -245,14 +243,17 @@
 // Application main() function
 //-----------------------------------------------------------------------------------
 
-int main(int argc, const char* argv[])
+int main(int, const char**)
 {
     @autoreleasepool
     {
-        NSApp = [NSApplication sharedApplication];
+        [NSApplication sharedApplication];
-        AppDelegate* delegate = [[AppDelegate alloc] init];
+        [NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
-        [[NSApplication sharedApplication] setDelegate:delegate];
+
+        AppDelegate* appDelegate = [[AppDelegate alloc] init];
+        [NSApp setDelegate:appDelegate];
+
         [NSApp run];
     }
-    return NSApplicationMain(argc, argv);
+    return 0;
 }