用VC编写高质量图片旋转算法(双线性插值法)，生成DLL源代码，并提供VB调用例子代码。-VC prepared high-quality images rotation algorithm (bilinear interpolation), generate DLL source code, and called for VB code examples.

函数主要实现图像处理过程中由于旋转缩放导致坐标不在整数位置，使用原始像素对当前像素点的计算方法：双线性插值！-The main function is to achieve image processing result in the rotation of the zoom position coordinates are not integers, the calculation method using the original pixel of the current pixel: bi