Entry
R0 = non-zero for ellipsis (only if enabled in WimpExt_Initialise)
R2 = window handle
R3 = icon handle
R4 -> string
Copies the string pointed to by R2 into the specified indirected text icon, and updates the screen if necessary. If the string is longer than the size of the buffer then the right-hand end of the string is copied (as opposed to the left-hand end, which is the case if you use WimpExt_SetIconString). If the caret was in the icon then it is moved to the end of the new string.
If R0 is non-zero and bit 7 was set in R2 in WimpExt_Initialise and the string is longer than the icon can hold then the string will be pre-fixed with ....
Provided by Icons
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