Adam Simmons adamjs

Sending Mouse Input to a View

To send mouse input to a View, you should first create a MouseEvent and then pass it to the function View::FireMouseEvent.

Mouse Move Event

You should send a Mouse Move event whenever the mouse changes position.

Here is an example of moving the mouse to (100, 100) coordinate with no buttons pressed:

In Direct3D 9, you can upload pixels to a dynamic texture via the following:

Create the Texture: In D3D9 you can create the texture using the CreateTexture method. Make sure to specify the D3DUSAGE_DYNAMIC flag in the Usage parameter.

IDirect3DTexture9* pDynamicTexture = NULL;
HRESULT hr = pDevice->CreateTexture(width, height, 1, D3DUSAGE_DYNAMIC, D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &pDynamicTexture, NULL);

Exposing Qt Classes to JavaScriptCore: A Dynamic Proxy Approach with Signal Support

When working with Ultralight, you may want to expose your C++ classes to JavaScript. If your C++ application is based on Qt, you may find yourself in the challenging position of exposing a vast number of Qt classes to JavaScript, which could involve writing tedious manual bindings for each class. However, using Qt's meta-object system (reflection), you can dynamically expose these classes with far less effort.

In this article, we'll walk through how to set up a dynamic proxy using the JSC C API and Qt's meta-object system. This proxy will automatically forward method calls and property accesses in JavaScript to the corresponding Qt object in C++, and also support Qt's signal-slot mechanism.

Overview of the Proxy Approach

Instead of manually defining JavaScript bindings for every Qt class and method, we create a generic proxy. This proxy will:

Intercept method calls and property accesses made on

	//
	// Assume you had some DOM element on your page with id == 'placeholder', for example:
	//
	// <html>
	// <body>
	// <div id='placeholder'></div>
	// </body>
	// </html>
	//
	// We can bind a custom function to a JSObjectRef in C to query it's location natively.

	#include <windows.h>
	#include <dbghelp.h>
	#include <iostream>
	#include <strsafe.h>

	// Link with the DbgHelp.lib
	#pragma comment(lib, "dbghelp.lib")

	// Function to create the dump file
	void CreateDump(EXCEPTION_POINTERS* pExceptionPointers, TCHAR* szFileName)