ID Number: Q31075
2.00 2.03 2.10 3.00 3.10
WINDOWS
Summary:
SYMPTOMS
If the user uses the mouse to drag the left edge of a window (or
dialog box) within a few pixels of the right edge of the display
and releases the mouse button, the window moves completely off the
display. The user can't use the mouse to bring the window back
into the display.
CAUSE
The window is created with the CS_BYTEALIGNCLIENT or
CS_BYTEALIGNWINDOW class style bit set. When the user releases the
mouse button, the window moves right to byte-align itself. However,
because the byte boundary is off the screen, the entire window
becomes invisible.
RESOLUTION
There are two methods to work around this problem:
- Give the window a system menu. This will prevent it from
disappearing off the right edge of the screen.
-or-
- Calculate the size of any window that has a caption bar to
conform to the following formula:
horizontal_size modulo 8 <= 4
Additional reference words: 2.00 2.03 2.10 2.x 3.00 3.10 TAR77457 move