I have a bitmap (from a .bmp file) that is actually a small part of a larger screen dump that I took earlier.
我有一个位图（来自.bmp文件），它实际上是我之前采用的较大屏幕转储的一小部分。
Now I want to display that bitmap in a PictureBox control (WinForms), but I have trouble getting it to display at the same ratio as when it was captured originally.
现在我想在PictureBox控件（WinForms）中显示该位图，但是我无法以与最初捕获时相同的比率显示它。
I assume it has something to do with Windows' DPI setting for my monitor, but how can I shortcut that and make the bitmap be displayed exactly as when captured?
我认为它与我的显示器的Windows DPI设置有关，但我如何快捷方式并使位图与捕获时完全一致？
1 个解决方案
#1
1
I figured it out! The problem was not WinForms, but the horizontal and vertical resolution associated with the displayed bitmap. When copying the part of the original screendump into a new bitmap (the one that is later assigned to the Image property of the PictureBox), the new bitmap had a different (=default) resolution setting. By changing the resolution setting to match the one from the source bitmap (the original screendump), the problem went away!
我想到了！问题不是WinForms，而是与显示的位图相关的水平和垂直分辨率。将原始screendump的一部分复制到新位图（稍后分配给PictureBox的Image属性的位图）时，新位图具有不同的（=默认）分辨率设置。通过更改分辨率设置以匹配源位图（原始screendump）中的分辨率设置，问题就消失了！
#1
1
I figured it out! The problem was not WinForms, but the horizontal and vertical resolution associated with the displayed bitmap. When copying the part of the original screendump into a new bitmap (the one that is later assigned to the Image property of the PictureBox), the new bitmap had a different (=default) resolution setting. By changing the resolution setting to match the one from the source bitmap (the original screendump), the problem went away!
我想到了！问题不是WinForms，而是与显示的位图相关的水平和垂直分辨率。将原始screendump的一部分复制到新位图（稍后分配给PictureBox的Image属性的位图）时，新位图具有不同的（=默认）分辨率设置。通过更改分辨率设置以匹配源位图（原始screendump）中的分辨率设置，问题就消失了！