Examples: Vulkan: nverted the parameters to ImGui_ImplVulkan_RenderDrawData() to be consistent with other bindings.

CHANGELOG.txt

@@ -84,6 +84,7 @@ Other Changes:
  - Examples: Allegro5: Added support for ImGuiConfigFlags_NoMouseCursorChange flag. Added clipboard support. 
  - Examples: Allegro5: Unindexing buffers ourselves as Allegro indexed drawing primitives are buggy in the DirectX9 back-end (will be fixed in Allegro 5.2.5+).
  - Examples: DirectX12: Moved the ID3D12GraphicsCommandList* parameter from ImGui_ImplDX12_NewFrame() to ImGui_ImplDX12_RenderDrawData() which makes a lots more sense. (#301)
+ - Examples: Vulkan: Reordered parameters ImGui_ImplVulkan_RenderDrawData() to be consistent with other bindings, a good occasion since we refactored the code. 
  - Examples: FreeGLUT: Added FreeGLUT bindings. Added FreeGLUT+OpenGL2 example. (#801)
  - Examples: The functions in imgui_impl_xxx.cpp are prefixed with IMGUI_IMPL_API (which defaults to IMGUI_API) to facilitate some uses. (#1888)
  - Examples: Fixed bindings to use ImGuiMouseCursor_COUNT instead of old name ImGuiMouseCursor_Count_ so they can compile with IMGUI_DISABLE_OBSOLETE_FUNCTIONS. (#1887) 

examples/example_glfw_vulkan/main.cpp

@@ -261,7 +261,7 @@ static void FrameRender(ImGui_ImplVulkanH_WindowData* wd)
 	}
 
 	// Record Imgui Draw Data and draw funcs into command buffer
-	ImGui_ImplVulkan_RenderDrawData(fd->CommandBuffer, ImGui::GetDrawData());
+	ImGui_ImplVulkan_RenderDrawData(ImGui::GetDrawData(), fd->CommandBuffer);
 
 	// Submit command buffer
 	vkCmdEndRenderPass(fd->CommandBuffer);

examples/example_sdl_vulkan/main.cpp

@@ -258,7 +258,7 @@ static void FrameRender(ImGui_ImplVulkanH_WindowData* wd)
     }
 
 	// Record Imgui Draw Data and draw funcs into command buffer
-	ImGui_ImplVulkan_RenderDrawData(fd->CommandBuffer, ImGui::GetDrawData());
+	ImGui_ImplVulkan_RenderDrawData(ImGui::GetDrawData(), fd->CommandBuffer);
 
 	// Submit command buffer
     vkCmdEndRenderPass(fd->CommandBuffer);

examples/imgui_impl_vulkan.cpp

@@ -11,6 +11,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2018-06-22: Inverted the parameters to ImGui_ImplVulkan_RenderDrawData() to be consistent with other bindings.
 //  2018-06-08: Misc: Extracted imgui_impl_vulkan.cpp/.h away from the old combined GLFW+Vulkan example.
 //  2018-06-08: Vulkan: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
 //  2018-03-03: Vulkan: Various refactor, created a couple of ImGui_ImplVulkanH_XXX helper that the example can use and that viewport support will use.
@@ -193,8 +194,9 @@ static void CreateOrResizeBuffer(VkBuffer& buffer, VkDeviceMemory& buffer_memory
     p_buffer_size = new_size;
 }
 
-// This is the main rendering function that you have to implement and provide to ImGui (via setting up 'RenderDrawListsFn' in the ImGuiIO structure)
+// Render function
-void ImGui_ImplVulkan_RenderDrawData(VkCommandBuffer command_buffer, ImDrawData* draw_data)
+// (this used to be set in io.RenderDrawListsFn and called by ImGui::Render(), but you can now call this directly from your main loop)
+void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer command_buffer)
 {
     VkResult err;
     if (draw_data->TotalVtxCount == 0)

examples/imgui_impl_vulkan.h

@@ -29,7 +29,7 @@ struct ImGui_ImplVulkan_InitInfo
 IMGUI_IMPL_API bool     ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass render_pass);
 IMGUI_IMPL_API void     ImGui_ImplVulkan_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplVulkan_NewFrame();
-IMGUI_IMPL_API void     ImGui_ImplVulkan_RenderDrawData(VkCommandBuffer command_buffer, ImDrawData* draw_data);
+IMGUI_IMPL_API void     ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer command_buffer);
 
 // Called by Init/NewFrame/Shutdown
 IMGUI_IMPL_API void     ImGui_ImplVulkan_InvalidateFontUploadObjects();