make grabRawScreen() pure virtual, since it's now _required_ to be implemented by backends for certain SCUMM games to function properly.

This happened when ScummEngine::moveScreen() was changed in revision 23215 and causes Indy4 to fail the assert(_system->grabRawScreen(...)) on PSP (and Symbian?), where this function was not implemented.

svn-id: r23383
This commit is contained in:
Joost Peters 2006-07-07 09:00:18 +00:00
parent 3f4cc015b2
commit 240acc427a

View File

@ -415,7 +415,7 @@ public:
* @param surf the surfce to store the data in it
* @return true if all went well, false if an error occured
*/
virtual bool grabRawScreen(Graphics::Surface *surf) { return false; }
virtual bool grabRawScreen(Graphics::Surface *surf) = 0;
/**
* Clear the screen to black.