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Is this a bug? Should the private declaration in the header of the module def, prevent the main program from finding the definition of the type test_t?

module def
implicit none

private

ty ...

Progress to date:-

https://www.youtube.com/watch?v=tM2F2NNaHxY

Thanks to those who emailed and messaged me with suggestions.

Thanks Paul,

I've not used child windows before so I am on a learning curve, and experimenting.

For the long dark winter nights I have tasked myself with developing a schematic capture applicat ...

John,

The first example generates the following. A quarter of the image area is displayed (0.5 x 0.5 = 0.25)

http://www.tr5mx.co.uk/chex1.jpg

The second example draws the whole image:-

ht ...

I have modified one of the examples in the documentation to convince myself that its possible to scroll over a graphics area embedded in a child with scroll bars:

program main
implicit none
inclu ...

Thanks Paul, I forgot about that example. Modified your example to demonstrate issue as below, and uncommenting the call to set_graphics_selection@ the problem goes away. Very Happy

Ken

program ...

Below is a link to a simple drawing program which behaves as expected, drawing lines, circles, rectangles etc.

http://www.tr5mx.co.uk/canvas2.f95

If the %gr options smooth4 or smooth8 are includ ...

You could use %pl to set up the x and y coordinates. Then since %pl is a graphics region you can simply draw your contour lines on the drawing surface via a call back function. I've got this to work ...

Thanks Paul, Problem fixed Smile

I was sure I had read some where that these were to be kind=7. Corrected code below for those who wish to experiment.
module data_mod
implicit none
integer, par ...

Thanks Paul. Here's the code with Paul's suggestions. Runs OK in 32 bit, but there is a problem with 64 bit which I have yet to identify. 7th argument of the %pl should be 32 bit integer ?? module d ...

One to be aware of if using multiple %pl regions and get_plot_data@.

In the example below there are two %pl regions, both with full mouse input.

Data in each plot is different and the plots have ...

Thanks Eddie, been starting at this one for a few hours and never saw the blindingly obvious (again). Ken

Can somebody tell me what's wrong with line 12 in the following code, which generates a run time error "Invalid tabulation error". Sad

program test
implicit none
include<windows.ins& ...

Interesting ranking of programming languages that might stimulate some discussion on here.

https://spectrum.ieee.org/at-work/innovation/the-2018-top-programming-languages?

In Plato, the bubble help which appears after typing "atan2(" is incorrect.

http://www.tr5mx.co.uk/atan2.jpg

It should be "REAL FUNCTION ATAN2(REAL Y, real x)"

Ken