【发布时间】:2009-08-20 01:26:04
【问题描述】:
我是根据我看到的一个示例制作的,它从未抛出任何错误,但图像显示为灰色。
有没有更好的方法来做到这一点?
private unsafe void menuItem7_Click(object sender, EventArgs e)
{
var settings = Utility.GatherLocalSettings();
openFileDialog1.InitialDirectory = settings.SavePath;
openFileDialog1.Filter = "Scan Files (*.jpg)|*.jpg";
openFileDialog1.FilterIndex = 1;
openFileDialog1.RestoreDirectory = true;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
byte[] openFile = File.ReadAllBytes(openFileDialog1.FileName);
fixed (byte* p = openFile)
{
IntPtr img = (IntPtr)p;
frmContainer newScan = new frmContainer(img);
newScan.MdiParent = this;
newScan.Text = Path.GetFileName(openFileDialog1.FileName) + " [Saved]";
newScan.Show();
}
}
}
PS:我检查了 csproj 以允许构建中的不安全代码。
【问题讨论】:
-
你能贴出frmContainer的代码吗,或者只是它的带有IntPtr参数的构造函数?