[Tutor] program that 'waits' for file?
kayrivertree at yahoo.com
Sun Aug 27 17:19:40 CEST 2006
I'm trying to make a program that will wait for a specific file to be made by another program, and when that happens it opens and modifies that file. The other program is a commercial game that allows the player to take screenshots. It saves the screenshots in a particular directory, naming each one "screenshot#.bmp". The # is a number that increases with each new file.
Here's a rough plan of my program:
1. input for user to enter highest numbered screenshot, to determine next "screenshot#.bmp"
2. function that waits for "screenshot#.bmp" to be created and opens it
3. function that performs image manipulations
4. function that saves new image to another directory
5. close program
I want my program to run "behind the scenes" so to speak. The user will start it, enter the highest numbered screenshot they have, and then start the game. When they take a new screenshot ingame, the resulting file will be made into a texture on a 3d model that will appear in the game world.
I think I can handle the image processing and file writing functions using PIL, and the ingame model is no problem. But I don't know how to make my program "wait" for the file to be created. Is this possible, and if so, can someone show me how to do it?
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