本文整理汇总了C#中MouseEventArgs.GetPosition方法的典型用法代码示例。如果您正苦于以下问题：C# MouseEventArgs.GetPosition方法的具体用法？C# MouseEventArgs.GetPosition怎么用？C# MouseEventArgs.GetPosition使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MouseEventArgs的用法示例。
在下文中一共展示了MouseEventArgs.GetPosition方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: DrawPixel
// The DrawPixel method updates the WriteableBitmap by using
// unsafe code to write a pixel into the back buffer.
static void DrawPixel(MouseEventArgs e)
{
int column = (int)e.GetPosition(i).X;
int row = (int)e.GetPosition(i).Y;
// Reserve the back buffer for updates.
writeableBitmap.Lock();
unsafe
{
// Get a pointer to the back buffer.
int pBackBuffer = (int)writeableBitmap.BackBuffer;
// Find the address of the pixel to draw.
pBackBuffer += row * writeableBitmap.BackBufferStride;
pBackBuffer += column * 4;
// Compute the pixel's color.
int color_data = 255 << 16; // R
color_data |= 128 << 8; // G
color_data |= 255 << 0; // B
// Assign the color data to the pixel.
*((int*)pBackBuffer) = color_data;
}
// Specify the area of the bitmap that changed.
writeableBitmap.AddDirtyRect(new Int32Rect(column, row, 1, 1));
// Release the back buffer and make it available for display.
writeableBitmap.Unlock();
}示例2: Control_MouseMove
private void Control_MouseMove(object sender, MouseEventArgs e)
{
var draggableControl = sender as UserControl;
if (isDragging && draggableControl != null)
{
Point currentPosition = e.GetPosition(this.Parent as UIElement);
var transform = draggableControl.RenderTransform as TranslateTransform;
if (transform == null)
{
transform = new TranslateTransform();
draggableControl.RenderTransform = transform;
}
transform.X = currentPosition.X - clickPosition.X;
transform.Y = currentPosition.Y - clickPosition.Y;
}
}示例3: ErasePixel
static void ErasePixel(MouseEventArgs e)
{
byte[] ColorData = { 0, 0, 0, 0 }; // B G R
Int32Rect rect = new Int32Rect(
(int)(e.GetPosition(i).X),
(int)(e.GetPosition(i).Y),
1,
1);
writeableBitmap.WritePixels(rect, ColorData, 4, 0);
}示例4: MainPage_MouseMove
private void MainPage_MouseMove(object sender, MouseEventArgs e)
{
if (!_isDragging)
return;
if (!SearchPopup.IsOpen)
SearchPopup.IsOpen = true;
Point position = e.GetPosition(null);
SearchPopup.HorizontalOffset = position.X;
SearchPopup.VerticalOffset = position.Y;
}