TE Edit Control .NET Core / .NET Framework Help
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TerPixToTextPos

Retrieve the text position at a given pixel position.

bool TerPixToTextPos( RelativeTo, x, y, out pLine, ref pCol)
int RelativeTo;This parameter should be set to one of the following constants:
REL_SCREEN: When specifying the x/y values relative to the top of the screen.
REL_WINDOW:When specifying the x/y values relative to the client area of the edit control.
REL_TEXT_BOX:When specifying the x/y values relative to the top of the text box.
int x;The x position of the pixel.
int y;The y position of the pixel.
int pLine;The variable to receive the text line number.
int pCol;The variable to receive the text column number. To retrieve the absolute text position in the pLine parameter, set the pCol parameter to null or set the column number to -1.

Return Value: This function returns true when successful.

Example: The example below retrieves the text position at a pixel position x=100, y=100.

int line;

int col=0; // set to 0 to retrieve the position in line/column format.

TerPixToTextPos( REL_TEXT_BOX, 100, 100, out line, ref col);