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comp.windows.x Frequently Asked Questions (FAQ) 7/7
Archive-name: x-faq/part7 Last-modified: 1996/09/26
Section Contents
- News Headers
- 149) I'm writing a widget and can't use a float as a resource value.
- 150) Is this a memory leak in the X11R4 XtDestroyWidget()?!
- 151) Is this a memory leak in the X11R4 deletion of work procs?!
- 152) Why does the process size of my X programs go up,up,up?
- 153) Are callbacks guaranteed to be called in the order registered?
- 154) Why doesn't XtDestroyWidget() actually destroy the widget?
- 155) How can I open multiple displays with Xt?
- 156) How do I query the user synchronously using Xt?
- 157) How do I determine the name of an existing widget?
- 158) Why do I get a BadDrawable error drawing to XtWindow(widget)?
- 159) Where can I get documentation on Xaw, the Athena widget set?
- 160) What's the difference between actions and callbacks?
- 161) How do I simulate a button press/release event for a widget?
- 162) Can I make Xt or Xlib calls from a signal handler?
- 163)! What are these "Xlib: unexpected async reply" errors?
- 164) What are these "Xlib sequence lost" errors?
- 165) How can my Xt program handle socket, pipe, or file input?
- 166) Why doesn't my Xt timer go off when it is supposed to (sic) ?
- 167) What's this R6 error: X Toolkit Error: NULL ArgVal in XtGetValues?
- 168) Why do I get a BadMatch error when calling XGetImage?
- 169) How can my application tell if it is being run under X?
- 170) How do I make a "busy cursor" while my application is computing?
- 171) How do I fork without hanging my parent X program?
- 172) Why doesn't anything appear when I run this simple program?
- 173) What is the difference between a Screen and a screen?
- 174) Can XGetWindowAttributes get a window's background pixel/pixmap?
- 175) How do I create a transparent window?
- 176) Why doesn't GXxor produce mathematically-correct color values?
- 177) Why does every color I allocate show up as black?
- 178) Why do I get a protocol error when creating a cursor (sic)?
- 179) Why can't my program get a standard colormap?
- 180) Why doesn't the shared-memory extension appear to work?
- 181) Why does the pixmap I copy to the screen show up as garbage?
- 182) How do I get the width/height of an existing pixmap?
- 183) How can I most quickly send an image to the X server?
- 184) How do I check whether a window ID is valid?
- 185) Can I have two applications draw to the same window?
- 186) Why can't my program work with tvtwm or swm?
- 187) Can I rely on a server which offers backing store?
- 188) How do I catch the "close window" event to avoid "fatal IO error"?
- 189) How do I keep a window from being resized by the user?
- 190) How do I keep a window in the foreground at all times?
- 191) How do I make text and bitmaps blink in X?
- 192) How do I get a double-click in Xlib?
- 193) How do I render rotated text?
- 194) Why doesn't my multi-threaded X program work (sic) ?
- 195) How can I ensure that only one instance of my application is running?
- 196) How can I have two applications communicate via the X server?
- 197) Where can I get information on internationalizing applications?
- 198) What is the X Registry? (How do I reserve names?)
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Last Update October 22 2009 @ 05:36 AM