MLN PIXVERTOVERFLOW
The MLNYIXVERTOVERFLOW notification message is sent whenever a user uses the keyboard to insert more text than can fit in the current format rectangle or text limit of a multiple-line entry field (MLE).
Parameters
- id
- Low word of mpl. Identifies the MLE window.
- usNotifyCode
- High word of mpl. Set to MLN_PIXVERTOVERFLOW.
- lOverFlow
- Low and high word of mp2. The number of pels by which the operation overflowed the current format rectangle.
Returns
An application should return TRUE to retry the operation. If the application returns FALSE, the user cannot insert additional text.
Remarks
Before returning TRUE, the application should perform some operation (for example, changing the dimensions of the format rectangle) that will enable the text to fit.
Example Code
WM_CONTROL id = (USHORT) SHORT1FROMMP(mp1); /* MLE-window IO */ usNotifyCode = MLN_PIXVERTOVERFLOW; /* amount of overflow */ 10verFlow = LONGFROMMP(mp2);
This example processes the MLNYIXVERTOVERFLOW message by increasing the size of the format rectangle:
MLEFORMATRECT mlefr;
case MLN_PIXVERTOVERFLOW:
mlefr.cyFormat += 100;
WinSendMsg(hwndMle, MLM_SETFORMATRECT, (MPARAM) &mlefr,
(MPARAM) MLFFMTRECT_L1M1TVERT);
return TRUE;